Earthquake with magnitude of ML 1.0 on date 21-05-2020 and time 22:48:14 (Italy) in region 3 km SE Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Monte Cavallo (MC), on

  • 21-05-2020 20:48:14 (UTC)
  • 21-05-2020 22:48:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.97, 13.01 at 12 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monte Cavallo MC 3 145 145
Visso MC 8 1107 1252
Pieve Torina MC 9 1458 2710
Fiordimonte MC 10 202 2912
Preci PG 10 724 3636
Ussita MC 11 444 4080
Sellano PG 11 1079 5159
Pievebovigliana MC 12 866 6025
Serravalle di Chienti MC 12 1070 7095
Muccia MC 13 915 8010
Fiastra MC 14 559 8569
Castelsantangelo sul Nera MC 14 281 8850
Acquacanina MC 15 121 8971
Bolognola MC 18 142 9113
Cerreto di Spoleto PG 18 1075 10188
Camerino MC 19 6974 17162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
53 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
97 Km S of Fano (60888 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.0 2020-05-21
20:48:14
42.97 13.01 12 2020-05-21
20:55:27
Sala Sismica INGV-Roma 79421721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-21 20:48:14 ± 0.07
Latitude 42.97 ± 0.00
Longitude 13.01 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79421721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 315
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.24102
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 79421721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-21 20:55:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2020-05-21T20:49:37.18 3.0 undecidable manual Sg 5.12 0
IV.MSAG.HHZ. 2020-05-21T20:49:24.81 3.0 undecidable manual Sn -1.4 0
IV.MCRV.HHZ. 2020-05-21T20:48:59.49 3.0 undecidable manual Pn 1.6 0
IV.PTRJ.HNZ. 2020-05-21T20:48:49.28 3.0 undecidable manual Pg 1.72 0
IV.LAV9.HHZ. 2020-05-21T20:48:40.44 3.0 negative manual P 1.8 0
IV.PE3.EHZ. 2020-05-21T20:48:39.60 3.0 undecidable manual S -1.43 0
IV.MMO1.EHZ. 2020-05-21T20:48:23.79 0.1 undecidable manual S 107 0.241 95 -0.01 96
IV.PF6.EHZ. 2020-05-21T20:48:22.91 0.3 undecidable manual S 38 0.214 96 -0.1 71
IV.CSP1.EHZ. 2020-05-21T20:48:22.36 0.3 undecidable manual S 49 0.1862 99 0.18 71
IV.NRCA.HHZ. 2020-05-21T20:48:21.12 0.1 undecidable manual S 151 0.1556 103 -0.19 95
IV.MML1.HNZ. 2020-05-21T20:48:20.92 0.1 undecidable manual S 348 0.1466 106 -0.11 96
IV.PF6.EHZ. 2020-05-21T20:48:19.20 0.1 undecidable manual P 38 0.214 96 -0.08 95
IV.FDMO.HHZ. 2020-05-21T20:48:19.39 0.1 undecidable manual S 40 0.0863 130 -0.06 98
IV.CESI.HHZ. 2020-05-21T20:48:19.40 0.1 undecidable manual S 294 0.0863 130 -0.05 98
IV.MMO1.EHZ. 2020-05-21T20:48:19.72 0.1 undecidable manual P 107 0.241 95 -0.02 96
IV.NRCA.HHZ. 2020-05-21T20:48:18.24 0.1 positive manual P 151 0.1556 103 -0.06 97
IT.MTCL.HGE. 2020-05-21T20:48:18.20 0.1 undecidable manual S 338 0.0252 163 -0.25 96
IV.MML1.HNZ. 2020-05-21T20:48:18.23 0.1 undecidable manual P 348 0.1466 106 0.08 97
IV.CSP1.EHZ. 2020-05-21T20:48:18.93 0.1 undecidable manual P 49 0.1862 99 0.12 95
IV.FEMA.HNE. 2020-05-21T20:48:18.59 0.1 undecidable manual S 107 0.0288 162 0.11 98
IV.CESI.HHZ. 2020-05-21T20:48:17.33 0.1 positive manual P 294 0.0863 130 0.1 97
IV.FDMO.HHZ. 2020-05-21T20:48:17.33 0.1 undecidable manual P 40 0.0863 130 0.1 97
IV.FEMA.HNE. 2020-05-21T20:48:16.89 0.1 undecidable manual P 107 0.0288 162 0.22 96
IT.MTCL.HGE. 2020-05-21T20:48:16.67 0.1 undecidable manual P 338 0.0252 163 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.2 0.0001735 0.12 AML other m 2020-05-21T20:48:19.48
IV.CESI.HHN. ML:1.3 0.000234 0.18 AML other m 2020-05-21T20:48:19.72
IV.CESI.HNE. ML:1.2 0.00017733596 0.1152 AML other m 2020-05-21T20:48:19.48
IV.CESI.HNN. ML:1.3 0.0002211612 0.1664 AML other m 2020-05-21T20:48:19.64
IV.FDMO.HHE. ML:0.8 7.259207E-5 0.1536 AML other m 2020-05-21T20:48:19.53
IV.FDMO.HHN. ML:0.8 6.5355655E-5 0.1024 AML other m 2020-05-21T20:48:20.09
IV.NRCA.HHE. ML:0.8 5.267264E-5 0.1408 AML other m 2020-05-21T20:48:22.59
IV.NRCA.HHN. ML:1 7.07211E-5 0.1024 AML other m 2020-05-21T20:48:22.09
IV.NRCA.HNE. ML:0.8 5.6261825E-5 0.0128 AML other m 2020-05-21T20:48:21.69
IV.NRCA.HNN. ML:1.3 0.00015107393 0.32 AML other m 2020-05-21T20:48:21.17
IV.CSP1.EHE. ML:0.8 4.1675385E-5 0.1536 AML other m 2020-05-21T20:48:22.58
IV.CSP1.EHN. ML:0.9 4.949129E-5 0.1536 AML other m 2020-05-21T20:48:22.89
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download